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Type encrypted data

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This commit is contained in:
RMidhunSuresh 2021-12-02 11:57:20 +05:30
parent b2efcb9515
commit d2c09933c7
1 changed files with 8 additions and 2 deletions
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10
src/matrix/ssss/SecretStorage.ts
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@ -17,6 +17,12 @@ import type {Key} from "./common";
import type {Platform} from "../../platform/web/Platform.js";
import type {Transaction} from "../storage/idb/Transaction";
type EncryptedData = {
iv: string;
ciphertext: string;
mac: string;
}
export class SecretStorage {
private readonly _key: Key;
private readonly _platform: Platform;
@ -31,7 +37,7 @@ export class SecretStorage {
if (!accountData) {
return;
}
const encryptedData = accountData?.content?.encrypted?.[this._key.id];
const encryptedData = accountData?.content?.encrypted?.[this._key.id] as EncryptedData;
if (!encryptedData) {
throw new Error(`Secret ${accountData.type} is not encrypted for key ${this._key.id}`);
}
@ -43,7 +49,7 @@ export class SecretStorage {
}
}
async _decryptAESSecret(type: string, encryptedData: any): Promise<string> {
async _decryptAESSecret(type: string, encryptedData: EncryptedData): Promise<string> {
const {base64, utf8} = this._platform.encoding;
// now derive the aes and mac key from the 4s key
const hkdfKey = await this._platform.crypto.derive.hkdf(